The structure of the Large Magellanic Cloud

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dc.contributor.advisorFeast, Michael ; Whitelock, Patriciaen_ZA
dc.contributor.authorAbedigamba, Oyirwoth Patricken_ZA
dc.date.accessioned2015-07-14T09:01:29Z
dc.date.available2015-07-14T09:01:29Z
dc.date.issued2010en_ZA
dc.descriptionIncludes bibliographical references (leaves 67-69).en_ZA
dc.description.abstractThis work gives an account of the study of the metallicity [Fe/H] distribution (gradient) in the oldest population in the Large Magellanic Cloud (LMC), by making use of the available RR Lyrae data from the Optical Gravitational Lensing Experiment III (OGLE III). RR Lyrae stars are amongst the oldest objects in the universe and they have a range in element (metal) abundances. Measuring the distribution of metallicities of RR Lyrae stars in a galaxy gives one clues to the origin of galaxies. It is known that the pulsation periods of RR Lyraes is broadly correlated with their metallicity. This fact has been used for investigating the metallicity distribution of RR Lyrae stars in the LMC. I have found an indication that the proportion of metal poor RR Lyrae stars increases with distance from the centre of the LMC. In addition, an attempt was made to improve the metallicity-period relation by introducing the Fourier parameters, but this was unsuccessful. Lastly, a comparison is made with estimates of metallicity gradients of other LMC populations.en_ZA
dc.identifier.apacitationAbedigamba, O. P. (2010). <i>The structure of the Large Magellanic Cloud</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Astronomy. Retrieved from http://hdl.handle.net/11427/13514en_ZA
dc.identifier.chicagocitationAbedigamba, Oyirwoth Patrick. <i>"The structure of the Large Magellanic Cloud."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Astronomy, 2010. http://hdl.handle.net/11427/13514en_ZA
dc.identifier.citationAbedigamba, O. 2010. The structure of the Large Magellanic Cloud. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Abedigamba, Oyirwoth Patrick AB - This work gives an account of the study of the metallicity [Fe/H] distribution (gradient) in the oldest population in the Large Magellanic Cloud (LMC), by making use of the available RR Lyrae data from the Optical Gravitational Lensing Experiment III (OGLE III). RR Lyrae stars are amongst the oldest objects in the universe and they have a range in element (metal) abundances. Measuring the distribution of metallicities of RR Lyrae stars in a galaxy gives one clues to the origin of galaxies. It is known that the pulsation periods of RR Lyraes is broadly correlated with their metallicity. This fact has been used for investigating the metallicity distribution of RR Lyrae stars in the LMC. I have found an indication that the proportion of metal poor RR Lyrae stars increases with distance from the centre of the LMC. In addition, an attempt was made to improve the metallicity-period relation by introducing the Fourier parameters, but this was unsuccessful. Lastly, a comparison is made with estimates of metallicity gradients of other LMC populations. DA - 2010 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2010 T1 - The structure of the Large Magellanic Cloud TI - The structure of the Large Magellanic Cloud UR - http://hdl.handle.net/11427/13514 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/13514
dc.identifier.vancouvercitationAbedigamba OP. The structure of the Large Magellanic Cloud. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Astronomy, 2010 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/13514en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Astronomyen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherAstronomyen_ZA
dc.titleThe structure of the Large Magellanic Clouden_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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